Which realm was passed onto this duke whose father passed away before his birth and whose history was documented in the memoirs of Helene Kottanner?
Estates of Austria
-1
Section::::Abstract.
Helene Kottanner
2800897
-1
Section::::Life.:Parentage and posthumous birth (until 1440).

Ladislaus the Posthumous
161735
-1
Section::::Abstract.
Ladislaus the Posthumous
161735